The Dranetz P-00.050.6 Micro-USB Power Adapter is designed for use with the METSyS 3-Phase True-RMS Current Data Loggers. This power adapter directly connects to the instrument's USB micro-B charge port to charge the internal rechargeable lithium-ion battery and provide the instrument with up to 100 hours of operation for long-term measurement applications. Multiple country plugs are included for the ability to charge in various settings.